baber/WOPTO huggingface dataset:
Patent GB-1481632-A (GB)
Title: Method of producing visible images
IPC: G02F1/19
Filed: 1974-07-31
Abstract: 1481632 Controlling light R F AVRAMENKO and G A ASKARIAN 31 July 1974 [31 July 1973] 33799/74 Heading G2F A photo-conductor is disposed adjacent a surface of an imaging medium and exposed to a primary image while an electric potential difference is applied across the photo-conductor and medium in series, the resulting imagewise electrical current or charge distribution at the surface of the medium producing a like distribution of light scattering nuclei of a phase differing from that of the bulk medium, which may be illuminated to provide an intensified or converted image. The primary image may be optical, infrared, visible or ultraviolet, or other ionising radiation such as x-rays. The photo-conductor and imaging medium may be in contact, the potential difference preferably being off during illumination of the nuclei. Alternatively an intermediate layer with greatest electrical conductivity across its thickness is provided, and may optically shield the photo-conductor when the nuclei are illuminated. The imaging medium may be a liquid electrolyte producing gas nuclei on passage of current, or a gasified or near-boiling liquid in which gas nuclei form due to the heating effect of an electrical current. Alternatively the medium may be a saturated or supersaturated vapour affording condensed nuclei, in which case it is advantageous to superimpose an additional pulsed field on the steady field to draw ions from the surface of the medium into the bulk medium to promote local condensation. Preferably the medium is in a metastable state when the imaging is effected, e.g by cooling a gaseous medium, for example by adiabatic pressure reduction, or creating a temperature gradient which affects the ionic distribution. Alternatively an electrolyte may be saturated with gas. The nuclei may be removed by adiabatically increasing the applied pressure to dissolve vapour or gas nuclei, or, due to the temperature rise, to evaporate condensation nuclei. Alternatively the nuclei may be removed by shaking or scraping, or heating, either directly or by heating the photo-conductor. For charging primary images the formation, illumination and removal of the nuclei is perfomred cyclically.
Patent GB-521473-A (GB)
Title: Improvements in beer or like pumps
IPC: F04B53/10
Filed: 1938-11-21
Abstract: 521,473. Beer &c. pumps. GASKELL & CHAMBERS, Lfd., and WEIGHTMAN, J. S. Nov. 21, 1938, No. 33810. [Class 102 (ii)] In a beer or like pump a pin 17 or the equivalent passes inwardly through the wall 10 of the inlet passage 12 and projects into a recess in the stem of the inlet lift valve 13 to limit its upward movement. The head 20 of the pin may be non- circular or formed with a slot 21, and it may be fitted with a fibre or other non-metallic washer 22 bearing against' a boss 19 on the wall 10. The pin includes a threaded portion with an end 23 of reduced diameter. The valve stem may be formed as a hollow skirt 24 slotted at 25 to receive the pin and leaving narrow webs 26. Alternatively, the slotted skirt may be of reduced diameter with a lower flange to engage the pin, or the flanged valve stem may be solid with apertures for the passage of liquid.
Patent GB-1148370-A (GB)
Title: Industrial liquid fuel burner with fuel pressurizing and emulsifying means
IPC: F23D11/10
Filed: 1967-07-24
Abstract: 1,148,370. Burners. ENTREPRISE GENERALE DE CHAUFFAGE INDUSTRIEL PILLARD FRERES & CIE S.A. 24 July, 1967 [29 July, 1966], No. 33843/67. Heading F4T. A liquid fuel burner comprises a burner nozzle 4, a fan driven by a motor 1 for supplying combustion air axially about the nozzle, air inlets 6, a regulating flap 5 and a guide device 8 and a rotary fuel emulsifying device 3 disposed adjacent to and substantially coaxial with the nozzle 4 to supply emulsified fuel thereto. The fan and emulsifying device may be on a common shaft or have a speed-reducing device coupled between them.
Patent GB-1522834-A (GB)
Title: Agricultural compositions
IPC: C05D9/02
Filed: 1975-08-14
Abstract: 1522834 Foliar spray comprising Cu and Mn MAGYAR TUDOMANYOS AKADEMIA ATOMMAG KUTATO INTEZETE 14 Aug 1975 [15 Aug 1974] 33968/75 Heading C1B An aqueous solution of (a) 0À1-5 wt. per cent Mn<SP>2+</SP>, 0À03-1À2 wt. per cent Cu<SP>2+</SP> and 0-1À6 wt. per cent Fe<SP>2+</SP> (based on the total wt. of solution) the ratio Cn:Mn being 1:3-1:6, (b) comprising an organic acid with reducing complexing properties sufficient to inhibit oxidation of Mn or Fe, and (c) a chelating agent, the pH being 4-6 is used as a foliar spray for plants in peaty soils. The organic acid may be tartaric (e.g. 0À05-3 wt. per cent) and the chelating agent EDTA (0À02-1%). The hygroscopicity of the composition may be increased by adding, e.g. NH 4 NO 3 .
Patent GB-1120111-A (GB)
Title: Improvements relating to counting circuits
Inventor: BRIGGS JOHN NIGEL
IPC: H03K25/00
Filed: 1964-08-20
Abstract: 1,120,111. Electronic counters. ASSOCI ATED ELECTRICAL INDUSTRIES Ltd 20 Aug., 1965 [20 Aug., 1964], No. 34083/64. Heading G4A. [Also in Division H3] In an analogue type pulse counter circuit of the cup-and-bucket type including means, T 1 , whereby incoming pulses cause charging from a supply source HT + 1 of a relatively small condenser C 1  in series with a relatively large condenser C 2 , a staircase waveform is generated across the condenser C 2  which discharges through a discharge device, e.g. transistor T 2  when a predetermined number of pulses have been counted, the accuracy of the counter being stabilized against supply voltage fluctuations by biasing the discharge device from a tapping on a potential divider R 3  connected across the supply charging the condensers so that the discharge device is triggered after the same number of input pulses. As shown, positive input pulses to transistor T 1  cause capacitors C 1 , C 2  to charge via diode D 2 . Capacitor C 2 , being much larger than C 1 , has a smaller voltage developed across it. At the end of each input pulse capacitor C 1  discharges via R 2  and D 1  so that a succession of input pulses increase the step voltage across C 2 . When the voltage across C 2  reaches the predetermined value transistor T 2  begins to conduct slightly and by regenerative action transistor T 3  turns on transistor T 2  hard to discharge C 2  and produce an output across R 5 . Then by further regenerative action transistors T 2 , T 3  turn off. Any fluctuations in supply voltage occur at the base of transistor T 2 , so that the circuit is stabilized and counts the same number of pulses consistently. The output may be applied to a further counting stage.
Patent GB-1476020-A (GB)
Title: Heat exchanger
IPC: F28F9/00
Filed: 1975-08-15
Abstract: 1476020 Heat exchangers SIGRI ELEKTROGBAPHIT GmbH 15 Aug 1975 [16 Aug 1974] 34134/75 Heading F4S A heat exchanger comprises a plurality of blocks 4 of heat conductive material, e.g. graphite, having passages therethrough for heat exchanging fluids which are assembled together by clamping within a tubular casing formed by tubular sections 1a, 1b, 1c assembled end-to-end and clamped together by the rods 5 between clamping plates 2. The casing sections have no flanges but are sealed by flat packing rings 6 between adjacent end surfaces and at least some sections have connections 3 for the supply and discharge of the fluids.
Patent GB-994539-A (GB)
Title: Improvements in or relating to die assemblies
Inventor: PHILLIPS WILLIAM HARVEY
IPC: B21C3/04
Filed: 1963-08-29
Abstract: 994,539. Making drawing dies. ALLEGHENY LUDLUM STEEL CORPORATION. Aug. 29, 1963, No. 34292/63. Heading B3P. A die assembly 10 comprises a steel casing 12 having a stepped bore 26 and a longitudinal slot 36, a steel spacer ring 14 having a longitudinal slot 38, a cylindrical die 16, a screw 44 to compress the casing and thereby grip the spacer ring and die, and a jack plug 52 behind the head of the screw to positively open the slot 36 as the screw is released, and thereby remove the holding force from the spacer ring and die. The assembly also includes a flanged bush 18 which fits closely in the smaller diameter portion of the bore 26, has a clearance bore 34 aligned with the die opening, and has a flange 30 which has a small clearance in the larger diameter portion of the bore 26. The die 16 is formed of a cemented refractory metal carbide.
Patent GB-957516-A (GB)
Title: Improvements in or relating to magnetic data storage devices
IPC: G11C11/06
Filed: 1960-06-03
Abstract: 957,516. Magnetic storage devices. BURROUGHS CORPORATION. June 3, 1960 [June 5, 1959; May 17, 19 No. 34419/63. Divided out of 957,514. Heading H1T. A magnetic storage device comprising a magnetic core having write-in means and readout and output windings has a member of magnetic material, or means for producing a constant unidirectional magnetic field, disposed in proximity to the read-out winding and the core for causing the flux change in one part of the body to be greater than that in another part in order to increase the output signal. With the exception of the arrangement shown in Fig. 9, the subject-matter of this Specification is the same as that of Specification 957,514.
Patent GB-645340-A (GB)
Title: Improvements in or relating to automatic non-return valves
IPC: F16K15/14
Filed: 1946-11-22
Abstract: 645,340. Collapsable tubes with non- return valves. STRICKLAND, I. T., and COULON, H. F. Nov. 22, 1946, No. 34612. Class 66] [Also in Group XXIX] An automatic non-return valve for a collapsable tube 9 comprises a thick rubber &c. disc 10 having mouth 17, the underside of the disc being recessed and thinned around the mouth to form a non-protruding lip which is deflected by pressure exerted to extrude the contents of the tube. The recess may taper towards the mouth. The disc may be domed and the mouth 17 may be a slit with a lip 19 on each side. The lower part 15 of the recess may be rectangular and the upper part 16 may be roof-shaped and radiused at 18 into a slot 17 as long as the ridge of the part 16. The centre 13 of the disc may be bulbous. The disc 10 may be seated on a rigid annulus 11, the hole 12 therein being large enough to avoid masking of the recess. The disc 10 may be clamped to the annulus 11 either by a separate ferrule (e.g. conical) engaging the body of the tube 9 or by turning the rim 9a of the tube over the periphery of the disc. According to the Provisional Specification, the disc 10 may be located in or on an annular part of the neck of the tube, the mouth of the valve may be annular and the annulus 11 may overlie the disc 10.
Patent GB-1023084-A (GB)
Title: Improvements in and relating to the programmed multiplication of electrical analogue voltages
IPC: H03K5/15
Filed: 1964-08-25
Abstract: 1,023,084. Electric analogue calculating. CONTRAVES A.G. Aug. 25, 1964 [Sept. 3, 1963], No. 34655/64. Heading G4G. A circuit for multiplying  two electric analogue voltages U x  U y  from sources G x , G y  comprises (Fig. 1) chopper modulator stages M x , M y  utilizing transistors T mx , T my  whose bases are energized with square-wave voltages V sx , V s y mutually phase offset by #/2; from source Qs;  2 in which a multivibrator operating at four times the required frequency energizes a binary divider to produce mutually inverted squarewaves at double that frequency to energize two further binary dividers producing the required waveforms. The modulated outputs of M x , My are added at transistor T a  limited by Zener divider Z, and applied to photo-electrically (or thermally or magnetically) controlled resistor P, responsive to a multiplier variable by an external programme, to develop a variable amplitude composite waveform which is amplified at V and applied to demodulators Dx, Dy containing switching transistors Td x , Td y  base energized by square-wave voltages U sx , U sy . The demodulated outputs are smoothed by R.C. filters to analogue voltages pU x , pUy
Patent GB-190722-A (GB)
Title: Improvements in and relating to aluminium base alloys
IPC: C22C21/02
Filed: 1922-12-20
Abstract: 190,722. Archer, R. S., and Jeffries, Z. Dec. 20, 1921, [Convention date]. Alloys.-Aluminium alloys contain magnesium and not less than about 0.5 per cent of silicon, with or without other elements such as nickel, manganese and chromium, copper being absent except as an impurity. The alloys preferably contain about 1 per cent each of magnesium and silicon. The alloys are maintained at 500-580‹ C. for some time, and are either quenched outright and subsequently aged by being heated at 100- 200‹ C. for some time, or are quenched only to the temperature at which they are to be aged.
Patent GB-1167217-A (GB)
Title: Process for the Production of Free-Hydrogen-containing Gaseous Mixtures by the Treatment of Hot Gases resulting from the Oxidation of Hydrocarbons
IPC: F02C1/05
Filed: 1967-07-28
Abstract: 1,167,217. Gas turbine plant. SOC. TECHNIQUES D'ENTREPRISES CHIM. July 28, 1967 [July 30, 1966], No.34851/67. Heading F1G. [Also in Division C5] A hydrocarbon 3 is burnt with oxygen 2 to provide a hot gas containing free hydrogen and carbon monoxide which is passed through a bubbling column 5 to saturate the gas with steam and to remove unburnt carbon. The gas, at 200- 450C. is reheated to 500-700C. by passage through the conduit 7 of a flame super-heater 8 and then passed through an expansion turbine 12. The shaft of the turbine may drive an electric generator or gas compressors.
Patent GB-1309505-A (GB)
Title: Speed controllers for internam coambustion engines
IPC: F02D31/00
Filed: 1971-07-26
Abstract: 1309505 Automatic speed control DEUTSCHE VERGASER GmbH CO KG 26 July 1971 [27 April 1971] 34937/71 Heading G3R A speed controller for an internal combustion engine adjusts the position of an air or fuel-air mixture flow valve in accordance with engine speed. The system is actuated by a thermoswitch only when the engine temperature exceeds a pre-set value. Failure of the electrical supply causes the valve to be returned to a closed or idling position. In the system shown, a comparator 12 produces an output indicative of the difference between a reference voltage from a potentiometer 13 and the voltage produced by an engine-driven tachogenerator 11. The output is amplified and drives a D.C. or stepping motor 15 connected through reduction gear 21 and a clutch 29 to a disc cam 24 controlling a butterfly valve 22. In operation, initial energisation of the system actuates a relay 20 causing a brake 17 on the shaft of motor 15 to be released. The clutch 29 remains disengaged until thermoswitch 33 closes when the engine temperature rises. Drive is now transmitted to the valve 22 until the desired speed is reached. Electrical failure causes the clutch 29 to disengage, allowing a spring 36 to close the valve 22. Alternatively, a standby source may be energized to drive the valve to its closed position. The control signal from comparator 12 may be integral or proportional or mixed to achieve optimum stabilisation in a given system. The engine may be used to drive 2-phase and 3-phase generators to produce a constant frequency output.
Patent GB-1056377-A (GB)
Title: Signal-producing circuit
IPC: H02M5/27
Filed: 1965-08-16
Abstract: 1,056,377. Converting. LEAR SIEGLER Inc. Aug. 16, 1965 [Aug. 19, 19641, No. 35000/65. Heading H2F. [Also in Division H3] A cycloconverter supplying a load through " positive " and " negative " rectifying groups 11, 12 has firing circuits 14, 15 for each group and the current conducted by each group is detected by a control system which ensures that only one group conducts at a time. Firing circuit 14 has its output shorted by a blanking transistor 36 to divert firing signals from the " positive " group when the control system so requires. The cycloconverter output current is detected by a centre tapped transformer 38, 39 whose output is clipped by diode chains 44 to 47. When the " negative " group is conducting a positive pulse, relative to the centre tap, appears at 41. This output is connected to an amplifier comprising transistors 48 and 49 in Darlington connection and the amplified output is connected to base 2 of the unijunction transistor 73 whose emitter is connected through Zener diode 78 to the base of a switching transistor 80. The output pulses from collector 83 of transistor 80 are differentiated at 85, 86, 87, giving voltage spikes corresponding to the leading and trailing edges of the pulses at 41. The negative voltage spikes, and those which appear alternately in the lower half of the circuit are passed by diodes 106, 108 and switch the bi-stable circuit comprising NPN switching transistors 103, 104 between its two stable states. The output of this bi-stable circuit drives transistors 132, 135 and hence the blocking transistors 36, 37. The RC networks in box B introduce a time delay between the blanking of one converter group and the unblanking of the other, so that although both converter groups may be blanked simultaneously they can never conduct simultaneously. This delay is long enough to prevent false operation of the blanking system due to spurious zero crossings of the output current waveform during an output half-cycle.
Patent GB-487348-A (GB)
Title: Improvements in or relating to buttons having interchangeable parts bearing initialsor other designs
IPC: A44B1/14
Filed: 1936-12-21
Abstract: 487,348. Ornamenting buttons. COROGRAM, Inc. Dec. 21, 1936, No. 35117. Convention .date, Sept. 2. [Class 43] [Also in Groups XV and XXV] In a button having a detachable ornamental part; the button 1 has on the front a recess 3 undercut at its inner end 4 and thread holes 2 extending from the rear to this recess, and the ornamental part 7 comprises an ornamented cap portion having convex-concave resilient tongues 7a the convex walls of which are adapted to engage the wall of the undercut portion of the recess so as to retain releasably the ornamental part in the recess. The outer end 6 of the recess may be tapered.
Patent GB-622690-A (GB)
Title: Improvements in or relating to the production of alkylated phenols
IPC: C08K5/13
Filed: 1946-11-27
Abstract: Rubber-like copolymers of butadiene and acrylonitrile are stabilized by the addition of 2 : 6-di-(a  : a  : g  : g -tetramethylbutyl)-4-methyl phenol.ALSO:2 : 6 - Di - (a  : a ,g  : g - tetramethylbutyl) - 4 - methylphenol is prepared by alkylating p-cresol with two mols. of diisobutylene (mixed isomers of octene) in the presence of boron trifluoride.  It is used as a stabilizer for natural and synthetic rubbers.  Diisobutylene is prepared by the dimerization of butylene.  The Specification as open to inspection under Sect. 91 comprises also the use of alkylation catalysts in general.  This subject-matter does not appear in the Specification as accepted.ALSO:Rubber and rubber like copolymers of butadiene and acrylonitrile are stabilized by the addition of 2 : b - di (  :   : V : V-tetramethylbutyl)-4-methyl phenol prepared as described in Group IV (b).
Patent GB-430418-A (GB)
Title: Improvements in machines for seaming on the lids of cans in chambers subjected to vacuum or charged with inert gases
IPC: B21D51/32
Filed: 1933-12-14
Abstract: 430,418. Assembling and seaming can heads and bodies. CHORLTON, F. O. L., Riverside Works, Bury. Dec. 14, 1933, No. 35162. [Class 83 (iv)] In a machine for seaming lids to cans in vacuo, a single vertical cam-shaft D is provided on which are located in spaced formation the cams for controlling the reciprocating mechanisms described below, a shaft B driving the cam-shaft D through a worm drive d including a clutch d2, d3 adapted to slip under excessive torque, and also driving the seaming-head c through gearing in a casing E. A member c4<1> is reciprocated to move the seaming-rolls c5 to and from the work by a cam c1, link c3, and a lever c10. A cam g1 operates an ejector rod G after the operation through linkage g3, g5, g6, g7. A can J is supported on a table P which is raised towards the seaming head by a cam p1, link p3 and levers p6, p8 with a resilient connection, the lever p8 engaging beneath a flange p9 on an extension p10, p12 of the table. A central spring-restrained actuating member operates centring devices as in Specification 430,419 on upward movement of the table. The seaming-head c is enclosed within a vacuum or inert atmosphere chamber C, having an inspection window c11, the aperture of the chamber being closed by a shutter H as in Specification 381,725, [Group XVII], operated from a cam h1 through links h8, h9. A sealing chamber M is moved upwardly over the can and pressed against a jointing ring m10 by a cam m1 through a rod m3 and links m6, m8, m9, as in Specification 381,343, [Group XVII]. Cans are fed to the machine by a chain conveyer from which they are received by bars R moved transversely to hold the can in recesses and longitudinally to move a can over the table P. The transverse reciprocation of the bars R is derived from a cam r1 through a rod r3, a rack and pinion, a shaft r12, and links r10, r9, r6. Longitudinal reciprocation is derived from a cam r10<1>, the rods r7 driving the chain conveyer in one direction through a rack and pinion and a pawl and ratchet device. The lids are clinched to the cans at one point in their travel by the mechanism described in Specification 403,172, the clinching mechanism being operated by a bevel wheel sector s5, operated from the shaft r12 through a projection r20 fixed on the shaft and normally engaging a notch in a member s2 pivoted to a lever s1 to move the lever s1, but a member s7 swinging the member s2 to inoperative position if no can is present. The vacuum chamber is employed in the manner described in Specification 430,420.
Patent GB-399343-A (GB)
Title: Bottle for scent or other similar uses
IPC: A45D34/02
Filed: 1932-12-13
Abstract: 399,343. Syringes. WURZBURGER, P., 11, Rue Labie, Paris. Dec. 13, 1932, No. 35350. Convention date, Dec. 31, 1931. [Class 102 (ii).] A bottle for scent &c. comprises a stopper having a hollow driprod the end of which is formed into a spraying nozzle. In the construction shown in Fig. 2 the driprod 1 is integral with a hollow plug 3 extending upwardly in the form of a cup-shaped support 7 which carries a rubber bulb 8 connected to the head 3, by a perforated screw 10. In the construction shown in Fig. 6, when not in use a piston 16 moving in a hollow rod 1 and acted upon by a return spring 17 is held depressed by the engagement of a hook 20 on its head 19 with the underside of one of two arms 15<1>, 15<2> extending laterally from the rod 1.
Patent GB-981378-A (GB)
Title: Injection phial
IPC: A61M5/34
Filed: 1963-09-06
Abstract: 981,378. Syringe ampoules. CHEMIE GRUNENTHAL G.m.b.H., and BUNDER GLAS G.m.b.H. Sept. 6, 1963 [Sept. 6, 1962; Nov. 23, 1962], No. 36396/63. Heading A5R. In order to facilitate securing a needle or mount in the neck of an ampoule 1 by means of adhesive a locating member 6, having a flat upper surface 7 and recess 8, is introduced from the inner side of the neck. This is pressed fully forward and the needle is located in the recess 8. Adhesive 5 is then introduced into the space between the neck and the needle and the member 6 serves, additionally, to limit the inward flow of adhesive and to prevent it reaching and clogging the lumen of the needle. If desired, the member 6 may also carry a central metal pin 9 which passes through the bore of the needle or needle mount.